In-Situ Polymerized Binder: A Three-in-One Design Strategy for All-Integrated SiO_{x} Anode with High Mass Loading in Lithium Ion Batteries

Shuxing Wu; Yajun Yang; Canbin Liu; Tiefeng Liu; Yaping Zhang; Bingkai Zhang; Dong Luo; Feng Pan; Zhan Lin

doi:10.1021/acsenergylett.0c02342

journal article·2021-01-08

In-Situ Polymerized Binder: A Three-in-One Design Strategy for All-Integrated SiO_x Anode with High Mass Loading in Lithium Ion Batteries

Shuxing Wu, Yajun Yang, Canbin Liu, Tiefeng Liu, Yaping Zhang, Bingkai Zhang, Dong Luo, Feng Pan, Zhan Lin

ACS Energy Letters· Volume 6· Issue 1

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Source abstract

Abstract

The development of SiOx electrode with high mass loading, which is an important prerequisite for practical lithium-ion batteries, remains an arduous challenge by using existing binders. Herein, we propose a three-in-one design strategy for binder systems in all-integrated SiOx electrodes. “Hard” poly(furfuryl alcohol) (PFA) and “soft” thermoplastic polyurethane (TPU) are interweaved into 3D conformation to confine SiOx particles via in-situ polymerization. In the electrode system, PFA works as a framework and TPU servers as a buffer, and H-bonding interactions are formed between the components. Benefiting from the three-pronged collaborative strategy, PFA-TPU/SiOx electrode exhibits an areal capacity of 2.4 mAh cm–2 at a high mass loading of >3.0 mg cm–2 after 100 cycles. Such a binder system is also extended to other potential metal oxides anode with high mass loading, e.g., Fe2O3 and SnO2, thus shedding light on rational design of functional polymer binders for high-areal-capacity electrodes.

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Research context

Energy storage Polymers

OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China

State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guandong Basic and Applied Basic Research Foundation

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